lib/autoload/devise_controller.rb
# Devise's version of an ApplicationController
# https://github.com/plataformatec/devise/blob/master/app/controllers/devise_controller.rb
require Gem::Specification.find_by_name('devise').gem_dir.concat('/app/controllers/devise_controller')
DeviseController.class_eval do
layout :layout
protected
def layout
if request.xhr?
false
else
'application_reduced'
end
end
end